William parfrey



(No Model.)

W. PARFREY. ATMOSPHERIC BURNER 0R HEATER.

Patented Nov. 16, 1897.

NVENTOR William Parfrfy BY ATTORN EY S l5 anza ca. PnOTO-LITHQ. wasummcn, n. c.

NITED STATES PATEN OFFICE.

WILLIAM PARFREY, OF NEW YORK, N. Y., ASSIGNOR TO IIIMSELF, RICHARD K. OWENS, AND GEORGE CODY, OF SAME PLACE.

ATMOSPHERIC BURNER OR HEATER.

SPEGIFIGATION'forming part of Letters Patent No.'5 93,904, dated November 16, 1897.

Application filed July 30, 1896. Serial No. 601,088. (No model.)

To all whom it may concern.- x I Be it known that 1, WILLIAM PARFREY, a subject of the Queen of Great Britain, residing at New York, in the county and State of New York, have invented new and useful Improvements in Atmospheric Burners or Heaters, of which the following is a specification.

The object of this invention is to obtain a burner or heater by which a thorough and effective combustion can be secured and by which also the combustion or generation of heat can be accurately regulated; and the invention resides in the novel features of construction set forth in the following specification and claim, and illustrated in the annexed drawings, in which Figure 1 is a sectional side elevation of a Fig.2 is a section along tube has slits or openings 5 for the entry of air to mix with the combustible in tube 4. The air entering through openings 5 is heated, coming from the supply-chamber 6, communicating through tube 7 with the hot-air chamber 8, surrounding burner-tube 4. The chamber 8 is fed or supplied with air through conduit 9, leading from entry-chamber 10, having the open mouth or cold-air inlet 11', leading from the outer atmosphere. I

Surrounding the tube 4 is a sleeve 12, which can be slid up or down by suitable means, as a rack and pinion 13 and 14, to close the openings 5 more or less to regulate the supply of air into tube 4.

The chamber 8 is thoroughly heated by the name from tube 4, so that the air passing to chamber 6 and mingling with the combustible is thoroughly heated and insures thorough combustion and heating.

The pinion 14 can be rotated by a conveniently-located finger-button 15. The burner 16 of burner-tube 4 by being formed with a series of thin or slit-like openings or mouths 17 will secure a spread of the flame to effect thorough heating of chamber 8.

The tube 7 is extended-up into chamber 8,

so as to take air from the upper or hottest part of said chamber. The temperature of the air entering from chamber 8 into tube 7 is thus. heated to at least 150 oentigrade,

which temperature of air when mixed with illuminating-gas has been found to give a flame which is characterized by a green color, and the heat of which is from 100 to 150 cent-igrade higher than the heat of an ordinary gas fiame.

The air-inlet chamber 10, constructed and arranged as described and shown, is advantageous for several reasons. .As its mouth 11 lies near the floor it takes in the coldest layer of air in the room. chimney to create a strong upward draft, so that the hot-air chamber 8 is effectually supplied with air through a comparatively small inlet or conduit 9, and the bottom of the cham- What I claim as new, and desire to secure by Letters Patent, is g The herein-described atmospheric burner or heater consisting of a burner-tube provided with a burner, means for admitting fuel to said burner-tube, a closed heatedair-supply chamber surrounding the burnertube, a closed ring-chamber surrounding the burner for heating the air before it enters the air-supply chamber and having a contracted air-inlet at one side and a tube communicating with the upper part of the airheating chamberat the side thereof opposite the inlet and leading to the air-supply chamber, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

W'ILLIAM PARFREY. Witnesses:

WM. 0. HAUFF, E. F. KASTENHUBER.

It also acts as a fine or 

